Resume & Portfolio

Osman Baliev, 27

Hi! I'm Osman Baliev, a web developer since 2016. Tech stack: Ruby on Rails / Vue.js. Former Ruby mentor at Thinknetica school. I get up to speed quickly and work well with teams :)

Github: https://github.com/OnlyReFLeX/

Projects

Below are some of my public projects.

Zdravsoft

Zdravsoft — online sanatorium automation and management: less bureaucracy, higher revenue, EGISZ integration. Patient records, treatment protocols, scheduling, staff schedules, inventory, analytics, patient and staff apps.

Backend Senior Developer · April 2023 – December 2025

Built the full backend of the medical information system (MIS) on Ruby on Rails.
Designed and implemented a complex multi-database schema (patients, visits, appointments, services, documents).
Developed APIs for integration with external systems (EGISZ, FRMO, POS terminals).
Implemented core business logic: e-sick leave, appointments, billing, reporting.
Optimized query performance and handling of large data volumes.
Configured authentication and role-based access control.
Containerized the application with Docker and set up dev images.
Participated in business logic and architecture design and conducted code reviews.

Stack: Rails / Vue (TypeScript, Quasar), PostgreSQL, Pundit, Interactor, AASM.

Interface
Interface
Interface
Interface
Interface
Interface
Interface
Interface
Interface

Spartan

Spartan Race — global leader in obstacle course racing (OCR): Spartan Races, DEKA, Trail, Endurance, kids events. Built the participant account portal: account.spartan.com — registration, orders, results, photos, passes, and race participation management.

Backend Developer · March 2021 – March 2023

Implemented authorization, profile management, and user activity display.
Built a personalized activity feed: posts from followed authors and auto-generated content (e.g. recommendations).
Integrated Sidekiq for background jobs: request processing, report generation, data sync, and other async workflows.
Created the team race system: team creation, race participation, aggregated statistics.
Implemented a rating system with a solid DB design, caching, and scalable queries.
Modernized the admin panel: access control, extended user and content management.

Account
Account
Account
Account
Account

Boft Docs

docs.boft.app — service for printing ID-style photos from your phone. Web interface for photo upload and an embeddable app for print kiosks.

Fullstack Developer · September 2020 – November 2022

Developed and maintained the web interface for photo upload for customers worldwide.
Built an embeddable app for print kiosks: product purchase and payment system integration.
Implemented file upload and storage with CarrierWave and AWS S3 for reliable, scalable media storage.
Implemented a flexible QR payment flow adapted to different banks and countries (Vietnam, Georgia, etc.).
Integrated external payment provider APIs for stable transaction handling and CRM payment tracking.